Home / 235,513.74-325,011.33-128,086.20

Finding the Fourth Proportional to 235,513.74, 325,011.33 and 128,086.20

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Solution

The fourth proportional to 235,513.74, 325,011.33 and 128,086.20 is: 176,760.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,513.74 : 325,011.33 = 128,086.20 : x
  2. Step 2: Convert to fraction form
    235,513.74/325,011.33 = 128,086.20/x
  3. Step 3: Cross multiply
    235,513.74x = 325,011.33 × 128,086.20
  4. Step 4: Simplify right side
    235,513.74x = 41,629,466,216.65
  5. Step 5: Solve for x
    x = 41,629,466,216.65/235,513.74
  6. Step 6: Final answer
    x = 176,760.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.